| AMB | avian myeloblastosis; amphotericin B; anomalous muscle bundle |
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| AMC | academic medical center; acetylmethyl carbinol; Animal Medical Center; antibody-mediated cytotoxicit... |
| AMR | acoustic muscle reflex; activity metabolic rate; acute mitral stenosis; alopecia-mental retardation ... |
| ASMA | antismooth muscle antibody |
| ASMD | anterior segment mesenchymal dysgenesis; atonic sclerotic muscle dystrophy |
| short extensor muscle of thumb | <anatomy, muscle> Origin, dorsal surface of radius; insertion, base of proximal phalanx of thumb; action, extends and abducts the thumb; nerve supply, radial. Synonym: musculus extensor pollicis brevis, musculus extensor brevis pollicis, short extensor muscle of thumb. (05 Mar 2000) |
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| short extensor muscle of toes | 1. <anatomy, muscle> (foot) Origin, dorsal surface of calcaneus; insertion, by four tendons fusing with those of the extensor digitorum longus, and by a slip attached independently to the base of the proximal phalanx of the great toe; action, extends toes; nerve supply, deep peroneal. Synonym: musculus extensor digitorum brevis, musculus extensor brevis digitorum, short extensor muscle of toes. 2. (hand) A short extensor muscle of the fingers of rare occurrence, and comparable to the short extensor of the toes. Synonym: musculus extensor digitorum brevis manus, Pozzi's muscle. (05 Mar 2000) |
| short fibular muscle | <anatomy, muscle> Origin, lower two-thirds of lateral surface of fibula; insertion, base of fifth metatarsal bone; action, everts foot; nerve supply, superficial peroneal. Synonym: musculus fibularis brevis, musculus peroneus brevis, short fibular muscle, short peroneal muscle. (05 Mar 2000) |
| short flexor muscle of great toe | <anatomy, muscle> Origin, medial surface of cuboid and middle and lateral cuneiform bones; insertion, by two tendons, embracing that of the flexor longus hallucis, into the sides of the base of the proximal phalanx of the great toe; action, flexes great toe; nerve supply, medial and lateral plantar. Synonym: musculus flexor hallucis brevis, musculus flexor brevis hallucis, short flexor muscle of great toe. (05 Mar 2000) |
| short flexor muscle of little finger | Origin, hamulus of hamate bone; insertion, medial side of proximal phalanx of little finger; action, flexes proximal phalanx of little finger; nerve supply, ulnar. Synonym: musculus flexor digiti minimi brevis manus, short flexor muscle of little finger. (05 Mar 2000) |
| short flexor muscle of little toe | Origin, base of metatarsal bone of the little toe and sheath of musculus peroneus longus; insertion, lateral surface of base of proximal phalanx of little toe; action, flexes the proximal phalanx of the little toe; nerve supply, lateral plantar. Synonym: musculus flexor digiti minimi brevis pedis, short flexor muscle of little toe. (05 Mar 2000) |
| short flexor muscle of thumb | <anatomy, muscle> Origin, superficial portion from flexor retinaculum of wrist, deep portion from ulnar side of first metacarpal bone; insertion, base of proximal phalanx of thumb; action, flexes proximal phalanx of thumb; nerve supply, median (superficial head) and deep branch of ulnar (deep head). Some authors consider the deep head to be the first in a series of four palmar interossei muscles of the hand. Synonym: musculus flexor pollicis brevis, short flexor muscle of thumb. (05 Mar 2000) |
| short flexor muscle of toes | <anatomy, muscle> Origin, medial tubercle of calcaneus and central portion of plantar fascia; insertion, middle phalanges of four lateral toes by tendons perforated by those of the flexor longus; action, flexes lateral four toes; nerve supply, medial plantar. Synonym: musculus flexor digitorum brevis, musculus flexor brevis digitorum, short flexor muscle of toes. (05 Mar 2000) |
| short head of biceps brachii muscle | <anatomy> Head of biceps brachii originating from coracoid process of scapula. Synonym: caput breve musculi bicipitis brachii. (05 Mar 2000) |
| short head of biceps femoris muscle | <anatomy> Part of biceps femoris originating from linea aspera of distal half of femur. Synonym: caput breve musculi bicipitis femoris. (05 Mar 2000) |
| short palmar muscle | <anatomy, muscle> Origin, ulnar side of central portion of the palmar aponeurosis; insertion, skin of ulnar side of hand; action, wrinkles skin on medial side of palm; nerve supply, ulnar. Synonym: musculus palmaris brevis, short palmar muscle. (05 Mar 2000) |
| short peroneal muscle | <anatomy, muscle> Origin, lower two-thirds of lateral surface of fibula; insertion, base of fifth metatarsal bone; action, everts foot; nerve supply, superficial peroneal. Synonym: musculus fibularis brevis, musculus peroneus brevis, short fibular muscle, short peroneal muscle. (05 Mar 2000) |
| short radial extensor muscle of wrist | <anatomy, muscle> Origin, lateral epicondyle of humerus; insertion, base of third metacarpal bone; action, extends and abducts wrist radialward; nerve supply, radial. Synonym: musculus extensor carpi radialis brevis, short radial extensor muscle of wrist. (05 Mar 2000) |
| hyoglossal muscle | <anatomy, muscle> A flat muscle on either side of the tongue, connecting it with the hyoid bone. Origin, body and greater horn of hyoid bone; insertion, side of the tongue; action, retracts and pulls down side of tongue; nerve supply, motor by hypoglossal, sensory by lingual. Synonym: musculus hyoglossus, hyoglossal muscle, hyoglossus. Origin: NL, fr. Hyo- hyo- + Gr. Tongue. (08 Mar 2000) |
| hyoglossus muscle | <anatomy, muscle> A flat muscle on either side of the tongue, connecting it with the hyoid bone. Origin, body and greater horn of hyoid bone; insertion, side of the tongue; action, retracts and pulls down side of tongue; nerve supply, motor by hypoglossal, sensory by lingual. Synonym: musculus hyoglossus, hyoglossal muscle, hyoglossus. Origin: NL, fr. Hyo- hyo- + Gr. Tongue. (08 Mar 2000) |